My Onkyo TX-SR806 remote has recently lost its mind. The On/Standby switch no longer turns receiver on or off; must do it manually on the receiver. The Volume control is now reversed: when you press the UP ARROW, the volume decreases; when the DOWN ARROW is pressed, the volume increases. All other functions seem to be working fine. I have selected the Receiver Remote Mode, reset the receiver, installed fresh batteries. Any ideas?

SOURCE: Onkyo TX-DS474 Receiver shuts down after Standby mode.

It's going into a protect mode. The amp is probably shorted out. Disconnect the spkrs and turn it on. If it still shuts off, it's the amp, if not, it's the spkrs.

SOURCE: Onkyo TX-SR806 7.1 Channels Receiver

If you have disconnected all connections from the receiver including your sources and the unit shuts down and goes in protect then there is an internal shortcircuit on the receiver and you would need to send that to an authorized service center. Now, since you just bought it 4 days ago, if you purchased it from an authorized dealer of Onkyo you could have it replaced since its way within the 30 day return policy. But, if you have purchased it from circuit city, unfortunately your option would only be the service center for repairs. If you send it to an authorized service center, you would need to put in a copy of your sales receipt together with a brief description of the issue you are encountering. Where did you purchase your 806?

SOURCE: receiver does not power on. standby not on either

The standby light should be on. If it is not, then check the main fuse. WIth the unit unplugged, remmove hte top cover and check the fuse by the line cord. If that is ok, then you will need to check the primary winding on the standby transformer. That transformer has a thermal fuse internally located and that sometimes gets blown due to a power surge. If you do not have the equipment to test this, get a detailed estimate from a local servicer. The standby transformer usually costs arounf $25 or so.

Dan

SOURCE: i have a onkyo tx-sr506 receiver that turns it self off

This unit is in protect mode. This means that a problem was detected and the unit has shutdown to prevent further damage. The most common cause of this is failed output transistors. Plan on $20-$40 for parts for this repair.

Dan

SOURCE: Onkyo Reciever TX-SR806 Losing HDMI signal.

I had the same problem with my xbox 360. I was able to fix the problem by disabling the Display Discovery setting on the xbox.